<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>iframe测试</title>
</head>
<body>
    <div>
        <a href="http://www.baidu.com" target="myframe">百度</a>
    </div>

    <iframe name="myframe" src="/aaa.do" frameborder="1" width="500px" height="300px">

    </iframe>
</body>
</html>